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PS4100 Hardware Maintenance Guide Basic Storage Array Information

Table 2 Array Back Panel Features

Shutting Down and Restarting an Array

A PS Series array includes redundant, hot-swappable drives, power supplies, and control modules (in a dual

control module array). You can remove a redundant component without affecting operation if a functioning

component is available. Otherwise, it is recommended that you cleanly shut down the array and turn off

power before removing a component.

Note: When an array is shut down, any volumes with data on the array will be set offline until the array is

successfully restarted. This may affect initiators that are connected to the volumes.

1. Do one of the following:

• Use telnet or SSH to connect to a functioning IP address assigned to a network interface on the

array. Do not connect to the group IP address.

• Use the null modem cable shipped with the array to connect to the serial port on the active control

module (ACT LED is green) to a console or a computer running a terminal emulator.

Make sure the serial line characteristics are as follows:

• 9600 baud

• One STOP bit

• No parity

• 8 data bits

• No flow control

2. Log in to an account with read-write access, such as the

grpadmin account.

Item Feature Identifier Description

1 Power switches (one

on each power supply)

None The power switch controls the power supply output to

the array.

2 Power supply and

cooling fan module

PSU0 (left)

PSU1 (right)

700 Watt power supply.

For more information, see Power Supply LEDs on page

29.

Type 12 Control

Module

CM0 (top)

CM1 (bottom)

The control module provides:

• a data path between the array and the applications

using the storage

• array management functions for your array

Control Module

Release Lever

None Enables you to remove the control module from the

array.

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